CAJ | 학술논문

为研究不同强度等级再生混凝土的抗折性能，设计了C30，C40，C50三个强度等级的再生混凝土，并对其抗折强度、抗压强度进行试验研究。试验结果表明：同一强度等级，再生混凝土可以达到甚至超过普通混凝土的抗折强度，再生混凝土的抗折强度与立方体抗压强度比值与普通混凝土接近；随着混凝土强度等级的升高，其抗折强度与立方体抗压强度的比值逐渐减小。
위연구불동강도등급재생혼응토적항절성능，설계료C30，C40，C50삼개강도등급적재생혼응토，병대기항절강도、항압강도진행시험연구。시험결과표명：동일강도등급，재생혼응토가이체도심지초과보통혼응토적항절강도，재생혼응토적항절강도여립방체항압강도비치여보통혼응토접근；수착혼응토강도등급적승고，기항절강도여립방체항압강도적비치축점감소。
In order to study the flexural performance of recycled concrete at different strength grades, recycled concrete in this experiment is designed in three strength grades of C30,C40,C50, and the flexural strength and compressive strength are studied. The results show that:the same strength grade, recycled concrete can meet and exceed that of the flexural strength and compressive strength of ordinary concrete;the ratio of flexural strength and cubic compressive strength is close between the recycled concrete and normal concrete; with the increase of the strength grade of concrete, the ratio of flexural strength and cubic compressive strength gradually decreases.